Khanna spoke after he called for the Justice Department and the Federal Trade Commission to review the impact the deal would have on food prices and wages.

On Monday, Amazon’s stock jumped to an all-time intraday high, three days after the company announced its blockbuster agreement to acquire Whole Foods.

Khanna said Wal-Mart’s dominance in the grocery space has already had a negative impact on wages and local grocery stores. He said the Amazon-Whole Foods deal will further “aggravate” the situation.

CNBC has reached out to Amazon, Whole Foods and Wal-Mart for comment.

Whole Foods said it has “nothing to add.”

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